databases.retrieve

const database = await notion.databases.retrieve({
  database_id: '897e5a76-ae52-4b48-a6d4-0b46543ebcda'
})

console.log(database.title)
console.log(database.data_sources)

const database = await notion.databases.retrieve({
  database_id: '897e5a76-ae52-4b48-a6d4-0b46543ebcda'
})

console.log('Database:', database.title[0].plain_text)
console.log('Data sources:', database.data_sources.length)
console.log('Created:', database.created_time)

const database = await notion.databases.retrieve({
  database_id: '897e5a76-ae52-4b48'
})

if (database.is_inline) {
  console.log('This is an inline database')
}

if (database.in_trash) {
  console.log('This database is in the trash')
}

if (database.is_locked) {
  console.log('This database is locked')
}

const { extractDatabaseId } = require('@notionhq/client')

const url = 'https://www.notion.so/myworkspace/897e5a76ae524b48a6d40b46543ebcda'
const databaseId = extractDatabaseId(url)

const database = await notion.databases.retrieve({
  database_id: databaseId
})

console.log(database.title)

const database = await notion.databases.retrieve({
  database_id: 'database-id'
})

for (const dataSource of database.data_sources) {
  console.log(`Data source: ${dataSource.name} (${dataSource.id})`)
  
  const results = await notion.dataSources.query({
    data_source_id: dataSource.id
  })
  
  console.log(`  Pages: ${results.results.length}`)
}